发明名称 |
MOTOR DRIVING APPARATUS AND CONTROL METHOD THEREOF |
摘要 |
A motor driving apparatus includes a speed control circuit for outputting a speed control signal on the basis of a target speed command and rotating speed information of a motor, a PWM signal generating circuit for generating and outputting a PWM signal on the basis of the speed control signal, a switching circuit for feeding power to motor windings on the basis of the PWM signal, and a protection circuit including a full torque detecting circuit for detecting a full torque status in which the speed control signal is a signal for instructing maximum torque. The protection circuit outputs a signal for stopping the switching circuit when the full torque detecting circuit detects a full torque status continuously for a specified time.
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申请公布号 |
US2007108930(A1) |
申请公布日期 |
2007.05.17 |
申请号 |
US20060560427 |
申请日期 |
2006.11.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YOKOUCHI TOMOHARU;KURODA KEISUKE |
分类号 |
H02P7/00 |
主分类号 |
H02P7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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